Drawing machine

 

 

Here is my drawing machine; it can draw lines and circles with white, blue, green or red on the black background.

Here is the coding for the drawing machine i have created.

float oldX;
float oldY;

void setup() {
 size(1200, 600);
 background(0, 0, 0);
}


void draw() {
 strokeWeight(2);
 smooth();
  fill(255, 0, 0);
  rect(10, 10, 25, 25 );
  fill(0, 0, 255);
  rect(35, 10, 25, 25 );
  fill(0, 255, 0);
  rect(10, 35, 25, 25);
  fill(255);
  rect(35, 35, 25, 25);
 
if(mousePressed) {
    if(mouseX > 10 && mouseX < 35){
      if(mouseY >10 && mouseY < 35){
        stroke(255, 0, 0);
      }
      if(mouseY>35 && mouseY < 60){
        stroke(0, 255, 0);
      }
      }   
    if(mouseX > 35 && mouseX < 60){
      if( mouseY > 10 && mouseY <35){
        stroke(0, 0, 255);
      }
      if(mouseY > 35 && mouseY < 50){
        stroke(255);
      }
    }
    if(mousePressed){
  line(mouseX, mouseY, oldX, oldY);
  }
}
  oldX=mouseX;
  oldY=mouseY;
}
void keyPressed() {
  if (key == 'c') {
    background(0);
  }
  if (key == 'o') {
    noFill();
    ellipse(mouseX, mouseY, 100, 100);
  }
  oldX=mouseX;
  oldY=mouseY; 
}

It took quite a while figuring out how I can make circles as I forgot that the last two numbers are supposed to be fore the radius (I thought they were for coordinates).

To improve this, I could either add more colours to it or provide different shapes or size of circle.